For the vanilla mounts I'd go with Talley or Warne.
There are lots of high-dollar mounts out there that are great but you don't need to break the bank to get a secure mounting system.
I've never personally had trouble with the Readfield type (Leupold, Burris also) but, when I worked in sporting goods at the gun counter, I've see a bunch where the rear ring will push through the windage screws under recoil.
Elkass is right, go with dual dovetail if using Leupold for the most security.
I'd still go with Talley or Warne if budget comes into play.
Zeke